Novelty helicopter fan



FIG. 1 is a left side elevational view of a novelty helicopter fan showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a rear elevational thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken line showing of portions of a novelty helicopter fan is included for the purpose of illustrating environmental structure and forms no part of the claimed design. 

The ornamental design for a novelty helicopter fan, as shown and described. 